/**
* {@inheritdoc}
*/
public function validateConfigurationForm(array &$form, array &$form_state)
{
if (!Color::validateHex($form_state['values']['bgcolor'])) {
form_set_error('bgcolor', $form_state, $this->t('Background color must be a hexadecimal color value.'));
}
}
/**
* Tests Color::rgbToHex().
*
* @param string $value
* The rgb color value.
* @param string $expected
* The expected hex color value.
*
* @dataProvider providerTestRbgToHex
*/
public function testRgbToHex($value, $expected)
{
$this->assertSame($expected, Color::rgbToHex($value));
}